Finding the Fourth Proportional to 22,476,415.96, 31,017,455.58 and 12,163,139.56
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Solution
The fourth proportional to 22,476,415.96, 31,017,455.58 and 12,163,139.56 is: 16,785,133.43
Step by Step Solution
- Step 1: Write the proportion equation
22,476,415.96 : 31,017,455.58 = 12,163,139.56 : x - Step 2: Convert to fraction form
22,476,415.96/31,017,455.58 = 12,163,139.56/x - Step 3: Cross multiply
22,476,415.96x = 31,017,455.58 × 12,163,139.56 - Step 4: Simplify right side
22,476,415.96x = 377,269,641,015,640.75 - Step 5: Solve for x
x = 377,269,641,015,640.75/22,476,415.96 - Step 6: Final answer
x = 16,785,133.43
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.